Improvement in dies for forging king-bolts



U1\TITED PA'IEN'I QFFICE SMITH & 00., OF GAME PLAOE.

IMPROVEMENT IN DIES- FOR FORGING KING-BOLTS.

Specifieation forniing part of Letters Patent No. 115,976, dated J une 13, 1871.

T0 all whom it may concern;

Be it known that I, FRANOIS B. MORSE, of Plantsville, in the county of Hartford and State of (Jonneeticut, have invented a new Improvernent in Dies f0r Forging King-Bolts; and I do hereby declare the follewing, when taken in eonneetion with the aeeompanying drawing and theletters of reference marked thereon, to be a full, clear, and exact deserip tion of the same, and whieh s-aid drawing constitutes part of this speeiieation, and represents, in-- Figure 1, a perspeetive view of the lower die; Fig. 2, a perspeetive view of theupper die; Fig. 3, the king-bolt blank; Fig. 4, the same after the -first operation of these dies; Fig. 5, the same after the second operation; Fig. 6, an end view after the first operation and in Fig. 7, an end viewafter the second operation.

This invention re1ates to an improvement in dies designed for. splitting the heads of kingbolts preparatory to frming the clips, but is alike applieable to the forgin g of other artieles in whieh the bar being forged is to be divided.

'Ihe ordinary way ofspiitting a piece of heated metal-that is to say, by means of the chisel neeessarily forces the meta1 largely to one side, as seen in Fig. 7, whieh renders it difficult t0 form goed forgings by means of dies, as the metal eannot be drawn back 0r wrought into a eentral position when struck in dies as when forged by hand, a difficulty whieh by my invention is entirely overeome, and consists in the construetion of dies, the first of Whieh is provided with a V-shaped tongue in both parts, whieh, wh en struek upon the metal, press a1ike into opposite sides, the second die provided with a V-shaped cutter, whieh strikes into the grooves formed by the first and separates the two parts.

A is the lower die, in whieh is formed a de pression, B, .running into a form 01 recess, G, eorresponding to the neck of the bolt whieh has been previously formed. I represent these dies as double-that is to say, thesame at both ends-so that when one is worn it may be turned to the other; but the doub1e dies eonstitute no part of iny invention. Central- 1y and longitudinally in the said die I form a projecting rib,D,of an inverted U er V shape, and. in the upper die E I form a reeess, B, 0r responding to the recess B, and also a rib, D, corresponding to the rib D.

The blank for the bolt, the neek of whieh has been previously formed, is heated and placed between the dies, whieh, striking to gether, form a depression upon opposite sides, leaving the blank substantially as seen in Figs. 4 and 6, eutting nearly through. This proeess hasforeed the metal from the center outward, and a1ike en both sides. T0 compietely separate the parts thus formed I employ a second die, constructed by preference in the same plate A, by forming a recess, I, with a central sharp-edged rib, H, as seen in Fig.1, and with a recess to receive the neck,

whieh serves as a guide for placing the blank.

In the upper die E I form a corresponding reeess, I, but without the rib; then so soon as the blank is formed by the first die it is ready for the second, into whieh it is placed, and

the dies eoming together separate the two parts, throwing out the two legs, as seen in Figs. 5 and 7, the recess of the die governing the position into which they are thrown; then the blank is ready for the shaping-dies, whioh form the clip, with an insuranoe to the work man that the meta l is distributed to the prop er position.

While I prefer to out the two parts by the last-described die, and believe that better work can be produeed, ether means may be empleyed to finally separate the two sides.

It will be readily observed by these skilled in the art that these dies may be employed for the manufacture of various artieles re quirin g a like split in their constrnction, it being only necessary to make the reeesses, te governthe p0sition of the blank, so as te properly present such artieles to the dies. I therefore do not wish to be understood as 1im iting my invention to the manufacture of kin g beits, or as requiring the particular form here shown to receive the neek of the blank I claim as my inventonmstnl to be wrought, substantially as set F. B. MORSE.

Jointly wit-h a die, in the two parts of forth. which are arranged a dividing-rib, D D, and recess t0 serve as a guide to govern the postion of the metal, the die, in one part of Wtnesses: whichare arranged a dividng-rib, H, and a recess 01 seat to govern the position of the E. E. PADDOCK, ASA L. FOWLER. 

